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Maybe I am not understanding something, but why not put on the outer surface a filter or reflective coating tuned for a set of frequencies that bracket the wavelength of the laser?
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Maybe it's because I use the word
fresnel without
effect.
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Originally Posted by DDG
The Fresnel Effect - Dorian Iten
https://www.dorian-iten.com/fresnel/
To understand the Fresnel Effect, you have to understand the basics of reflections. We'll keep this minimal - the key is the Angle of Incidence. The Angle of Incidence is the angle between your line of sight and the surface of the object you are looking at. |
A laser shown parallel to the glass' surface will bounce off rather than take a right turn into the glass. If the 'lase blade lighting' is above the windshield it will be absorbed by the hood, or in this case the roadway. If it's at the bottom it will blind airliner's pilots on final approach [not].
If the glass were coated with anything, better an hydrophobic coating like Rain-X to reduce or eliminate the need to fire up the lasers.